Le développement des utilisations non alimentaires de l’huile de colza dans l’UE : quels impacts sur les marchés et prix mondiaux ?
Bibliographic record
Abstract
For some years, biodiesel production, based mainly on rapeseed oil, has registered a big progression, and important investments are on stream for the next years. The analysis of recent evolution of European and international rapeseed products suggests that this development has already significant effects in term of increase in cultivated area and crops, diminution of EU exportation positive balance for this seed and oil, and evolution of prices ratios for oils and meals. This hypothesis is confirmed by results obtained with OLEOSIM model simulating the effect of an exogenous shock of demand of this oil inside EU. Nevertheless the influence of other factors remains very strong, some of these factors are depending on the economic and climatic situation, some others are structural such as the withdrawal of EU from Canadian rapeseed export market. In a middle term situation, the prices spreads between rapeseed and other vegetable oils, due to the only biodiesel development should be weaker than during 2005 year.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".